Dual Motor Driver with Arduino using a SN754410NE Quad Half H-Bridge

A step by step project guide by ArduinoFun

With this Instructable I am going to show you how to use a SN754410NE Quad H-Bridge IC to control two 12 volt DC Motors.

I have added a video so that you can see the Dual Motor in action.  As you can see in the video, all the wires can be a little confusing to look at.  To make things easier to view and understand as we go along, I have also created an illustration for you to refer to.  You may also download a printable PDF file of this illustration.  I have depicted an Arduino board in the illustration, if you already have one you are good to go, if not... you can do like I have and Build Your Own Arduino following another one of my instructables.



Breadboard Illustration - You may also download a printable PDF file of this illustration

Step 1 Parts List

Here is the recommended parts you will need in order to complete this project. I have provided sources where you can purchase items from and their prices.  These parts are available at others sites as well.

1. Arduino board - $29.95 at CuriousInventor.com or...
2. Build Your Own Arduino - Total build cost $15.95 at ArduinoFun.com
3. SN754410 Quad Half H-Bridge - $2.50 available at ArduinoFun.com
4. 840 Tie Point Breadboard - $6.95 available at ArduinoFun.com
5. Wire Jumper Kit - $12.95 available at ArduinoFun.com
6. Two DC Motors - $3.99 ea. available at ArduinoFun.com

DISCOUNT: 10% OFF Your Total Order at ArduinoFun.com when you use coupon code "INSTRUCTABLES" at time of checkout.

Comments

[bdughi]

Your links to the diagrams are dead. other than that you have a good instrucable. your code is good and simple.

[hughligen]

I'm confused as to why you have in the parts list, the Arduino as well as the build your own arduino.

Is it a choice? as in either a off the shelf arduino or a homebuilt one?

[johnnyhellfire]

So can you control the direction the motors go or is it only single directional circute

[oshondrom]

 This is stupid!Jou coud use just 2 digial pins 2 transistors and no other chips!

[amando96]

 I really don't understand anything of your code.